You have to decide in this case if you're smarter than the engineers that designed the cam...or just lazy
The first 20 minutes of a cam's life are critical. Yeah, it's a pain to change the springs on the car, but with the new tools it's a couple of hours work. Doing a cam swap in the car is going to be more expensive, take more time...and of course you've got all those filings running around.
Your call.
FYI, I always add a pint of EOS.